One of the greatest abilities that we have as humans is that of sight. It certainly enables us to “see” the world in a much more detailed manner, while experiencing life in a much deeper manner. So here is a brief rundown of how the eye works, as it relates to sight.
First let’s think of the eye as working like a camera. The initial step is the light from an object passes through our cornea. Next, this image is adjusted by the lens, which forms an upside-down image of the object on to the retina. Our retina is located at the very back of the eye. From the retina, via the nervous system, the image is transferred to the brain for interpretation. When the brain receives the image from the retina, it turns the image right side up. What’s incredible is this entire process takes place almost instantaneously!
Messages about the image that we see and process travel from the eye to the brain as a nerve impulse, and as I have so often talked about, if there is interference in the nerve signal because of a vertebral subluxation, sight can be affected. It is not that uncommon for some Practice Members to report improvements in sight following a Chiropractic adjustment and other treatments at Prana Chiropractic and Wellness Center! It is our brain that turns the nerve impulse sent from the eye into the detailed image that we “see.”
The iris is the colored part of the eye, and the hole located in the middle (the black part) is called the pupil. In bright light, the pupil shrinks to prevent too much light from getting into the eye. In dim light, the pupil will expand in order to allow more light into the eye. The iris, which is actually a ring of muscle, is what is responsible for the increase or decrease in size of the pupil depending on the amount of light. Pretty interesting stuff!
I say it often, but the fact remains, the human body is a miraculous thing! Are eyes are delicate extensions of the nervous system so it is important that you have regular Chiropractic checks in order to remove vertebral subluxations that could have a negative impact on the function of the eyes. It is also important to have regular eye checks from a licensed eye care provider in your area.
In Wellness and Love,
Dr. Christopher Weaver DC, PAK is a Doctor of Chiropractic and Professional Applied Kinesiologist. He's published two books on health and Wellness.